generic.edit.CreateView 分配默认值并插入数据库

Question

我有以下基于 class 的视图，它使用我的模型生成 "Create" 屏幕：

class ProjectCreateView(generic.edit.CreateView):
    model = Project
    fields = ['project_title','project_description','created_date']
    template_name = 'steps/project-detail.html'
    success_url = reverse_lazy('index')

型号：

class Project(models.Model):
    project_title = models.CharField(max_length=200)
    project_description = models.CharField(max_length=200, default="")
    created_date = models.DateTimeField('date created')
    owner = models.ForeignKey(User)

    def __str__(self):
        return self.project_title

现在，问题是如果我不希望 'created_date' 出现在实际表格中。相反，我希望只要按下提交按钮或将记录添加到数据库中，它就会自动填充。我怎样才能做到这一点？

最后，是否也可以默认指定owner字段？也就是说，我需要用创建此记录的用户的信息填充该字段。

Answer 1

将 owner 和 created_date 排除在您的字段列表之外。然后在调用 super().

之前覆盖 form_valid 并在表单实例上设置值

由于您正在设置所有者，因此您可以使用 LoginRequiredMixin 确保只有登录用户才能访问该视图。

from datetime import datetime

from django.contrib.auth.mixins import LoginRequiredMixin
from django.views.generic.edit import CreateView


class ProjectCreateView(LoginRequiredMixin, CreateView):
    model = Project
    fields = ['project_title','project_description']
    template_name = 'steps/project-detail.html'
    success_url = reverse_lazy('index')

    def form_valid(self, form):
        form.instance.owner = self.request.user
        form.instance.created_date = datetime.now()
        return super(ProjectCreateView, self).form_valid(form)

generic.edit.CreateView 分配默认值并插入数据库

generic.edit.CreateView Assign Default Values and Insert Into Database

python

django

model

django-class-based-views